Side wall for truncated conical container and process of making the same



Dec- 29, 1936- J..o| soN ET Al..`

SIDE WALL FOR TRUNCATED CONICAL CONTAINERS AND PROCESS OF MAKING THE SAME Filed May 5l, 1955 [/V VEN T055.

Patented Dec. 29, 1936 UNITED STATES PATENT GFFICE SIDE WALL FOR TRUNCATED CONICAL CON- TAINER AND PROCESS OF MAKING THE SAME Delaware Application May 31, 1935, Serial No. 24,328

3 Claims.

This invention relates to containers of truncated, conical exterior.

It is one of the objects of the invention to provide novel methods for cutting sheets for the walls of containers from strips of sheet material to prevent wastage.

It is another object to provide a novel and improved side wall and method of forming the same for laminated paper containers.

More specifically, it is an object of this invention to provide novel methods for cutting the paper laminations composing the side Walls of such containers as that illustrated in the United States Patent No. 1,979,992, issued to John Olson, on Nov. 6. 1934. It is a further object to improve the side Wall construction of the laminated paper container disclosed in the said patent.

The objects and advantages of the invention will more fully appear from the following description, made in connection with the accompanying drawing, wherein like reference characters refer to the same or similar parts throughout the various views, and, in which,

Fig. 1 is a view illustrating a blank of paper from which the laminations largely composing the side wall of my container are cut;

Fig. 2 is an elevation of the nished container in greatly reduced size; and

Fig. 3 is a horizontal section on an enlarged scale of a container formed according to my invention taken on the line 3-3 of Fig. 2.

Referring now to the embodiment of the invention shown in the drawing, a container wall A is illustrated made up largely of a number of laminations 3 cut from a strip of paper 4. The length of the laminations 3 is determined by the number of laminations used in producing the container, each lamination 3 being of a length to make one complete wrap for the side wall plus the additional portion of a second Wrap equal to 360 divided by the number of laminations used in the side wall. In other words, if the container side wall is to be composed of six paper laminations 3, as in the illustrated embodiment, each lamination 3 cut is of such a length as to make one and onesixth wraps about the mandrel on which the container side wall is formed.

In forming a side wall B, theinnermost lamination is wound about a mandrel and end portions of the innermost or rst lamination are overlapped and glued together. One edge of the next succeeding or second lamination is then applied so that it abuts or very closely abuts the outermost edge of the first lamination and, of course, the second lamination is glued to the iirst lamination and it is carried around so as to produce an overlapped portion as in the case of the iirst lamination. Succeeding laminations are similarly applied until the entire side wall is built up. Terminal points of laminations within the wall are shown at 5. When the side Wall is complete, it will be of a thickness throughout equal to the combined thickness of the number of laminations used plus one. In other words, if six laminations are used in producing the side Wall A, the side wall throughout will have a thickness of seven laminations. Also the side wall will be practically perfectly ring-shaped as shown.

It will be seen that an economical method has been provided for cutting the laminations to produce the side wall of a laminated paper container of truncated conical exterior, so as to eliminate wastage of the sheet material, such as paper, used in producing the said laminations. It will alsobe seen that a novel and improved laminated paper side wall for containers has been provided of superior construction.

It will of course be understood that various changes may be made in the form, details arrangement and proportions of the various parts and in the various methods and steps in the methods Without departing from the scope of the present invention, which generally stated, consists in the matter shown and described and set forth in the appended claims.

What is claimed is:-

1. The side wall of a flaring paper receptacle of truncated, conical shape, consisting of a plurality of paper laminations, each having top and bottom edges formed along the radially spaced arcs of concentric circles and ends formed along radii taken from the common center of said circles, each lamination being glued to its neighbor and the end portions of each lamination overlapping through an arc substantially equal to 360 divided by the number of laminations used.

2. The method of using the overlap of different laminations of the wall of a container of circular cross-section to produce a thickness of the wall at all points equal to the combined thickness of one more than the total number of laminations used, which consists in overlapping the ends of each lamination through an arc equal to 360 divided by the number of laminations used and substantially joining the outer end edge of one lamination with the inner end edge of the next adjacent outer lamination.

3. The method of using the overlap of different laminations of the wall of a laminated paper receptacle of truncated, conical exterior to produce a thickness of the Wall at 2,11 points equal to the combined thicknesses of one more than the total number of iaminations used Which Consists in overlapping the ends of each lamination through an are equal to 360 divided by the number of laminations used and substantially joining the outermost end edge of one lamination with the innermost end edge of the next adjacent lamination overlying the same.

JOHN OLSON. 5 RALPH E. WILLIAMSON. 

